package org.huzhp.security;


import org.springframework.security.core.Authentication;
import org.springframework.security.web.authentication.logout.SimpleUrlLogoutSuccessHandler;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@Component
public class LogoutSuccessHandler extends SimpleUrlLogoutSuccessHandler {

    @Override
    public void onLogoutSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException, ServletException {
        String targetUrl = this.determineTargetUrl(request, response);
        String callback = request.getParameter("callback");
        if (callback != null) {
            targetUrl = callback;
        } else {
            String referer = request.getHeader("referer");
            if (referer != null) {
                targetUrl = referer;
            }
        }
        super.getRedirectStrategy().sendRedirect(request, response, targetUrl);
    }

}
